/* ============================================================
   NEON 80s SYNTHWAVE PORTFOLIO – style.css
   ============================================================ */

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --pink:    #f5f9ff;
  --cyan:    #2979ff;
  --purple:  #8ec5ff;
  --yellow:  #b9d8ff;
  --dark:    #0f2821;
  --dark2:   #1a3a30;
  --dark3:   #255043;
  --card-bg: rgba(23, 57, 47, 0.84);
  --text:    #f5f9ff;
  --text-dim:#9fb0c2;
  --nav-h:   64px;
  --glow-pink:   0 0 6px #f5f9ff, 0 0 14px #d6e7ff, 0 0 28px #d6e7ff55;
  --glow-cyan:   0 0 6px #2979ff, 0 0 16px #2979ff, 0 0 30px #2979ff55;
  --glow-purple: 0 0 6px #8ec5ff, 0 0 16px #8ec5ff, 0 0 30px #8ec5ff55;
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: radial-gradient(120% 85% at 50% -10%, rgba(148, 235, 197, 0.18), transparent 60%), linear-gradient(180deg, rgba(15, 40, 33, 0.9), rgba(26, 58, 48, 0.92)), var(--dark);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Canvas background ────────────────────────────────────── */
#grid-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.56;
  pointer-events: none;
}

/* ── Typography helpers ───────────────────────────────────── */
h1, h2, h3 {
  font-weight: 700;
  letter-spacing: 0.04em;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover { color: var(--pink); }

/* ── Navigation ───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(15, 40, 33, 0.68);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(41, 121, 255, 0.22);
  transition: background 0.3s;
}

#navbar.scrolled {
  background: rgba(15, 40, 33, 0.9);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.5rem;
  position: relative;
}

.nav-menu-toggle {
  position: absolute;
  left: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(18, 47, 39, 0.92);
  border: 1px solid rgba(41, 121, 255, 0.35);
  border-radius: 4px;
  width: 42px;
  height: 34px;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.nav-menu-toggle:hover,
.nav-menu-toggle:focus-visible {
  border-color: rgba(41, 121, 255, 0.65);
  box-shadow: 0 0 10px #2979ff30;
  outline: none;
}

.nav-menu-bars {
  width: 16px;
  height: 12px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.nav-menu-bars span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  box-shadow: 0 0 8px rgba(245, 249, 255, 0.18);
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.nav-menu-toggle:hover .nav-menu-bars span,
.nav-menu-toggle:focus-visible .nav-menu-bars span,
.nav-menu-toggle[aria-expanded='true'] .nav-menu-bars span {
  background: var(--cyan);
}

.nav-menu-toggle[aria-expanded='true'] .nav-menu-bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-menu-toggle[aria-expanded='true'] .nav-menu-bars span:nth-child(2) {
  opacity: 0;
}

.nav-menu-toggle[aria-expanded='true'] .nav-menu-bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 0.12em;
  user-select: none;
  pointer-events: none;
}

.lang-switch {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

.lang-switch select {
  appearance: none;
  -webkit-appearance: none;
  background: rgba(18, 47, 39, 0.92);
  color: var(--text);
  border: 1px solid rgba(41, 121, 255, 0.35);
  border-radius: 4px;
  padding: 0.3rem 1.8rem 0.3rem 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 0 10px #2979ff20;
}

.lang-switch::after {
  content: '▾';
  position: absolute;
  right: 0.55rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--cyan);
  pointer-events: none;
  font-size: 0.75rem;
}

.lang-switch select:focus {
  outline: 2px solid rgba(142, 197, 255, 0.6);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav-links {
  position: absolute;
  top: var(--nav-h);
  left: 1.5rem;
  transform: translate3d(0, -8px, 0) scale(0.992);
  transform-origin: top left;
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  background: rgba(18, 47, 39, 0.94);
  border: 1px solid rgba(41, 121, 255, 0.22);
  border-top: none;
  width: 260px;
  max-width: calc(100vw - 24px);
  padding: 0.6rem 0 1rem;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s cubic-bezier(0.22, 1, 0.36, 1), transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.22s;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.nav-links li {
  text-align: center;
  padding: 0.65rem 2rem;
}

.nav-links.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0) scale(1);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s, text-shadow 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}



/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  position: relative;
  z-index: 1;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1.5rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}

.hero-greeting {
  font-size: 1rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-name {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  color: var(--pink);
  text-shadow: var(--glow-pink);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2.5vw, 1.25rem);
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 0.06em;
  white-space: pre-line;
}

/* Glitch effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.glitch::before {
  color: var(--cyan);
  text-shadow: none;
  clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
  animation: glitch-top 3.5s infinite linear;
}

.glitch::after {
  color: var(--purple);
  text-shadow: none;
  clip-path: polygon(0 55%, 100% 55%, 100% 75%, 0 75%);
  animation: glitch-bot 4s infinite linear;
}

@keyframes glitch-top {
  0%, 90%, 100% { transform: translate(0); opacity: 0; }
  92%            { transform: translate(-4px, -2px); opacity: 0.7; }
  94%            { transform: translate(4px, 1px);  opacity: 0.5; }
  96%            { transform: translate(-2px, 0);   opacity: 0.7; }
}

@keyframes glitch-bot {
  0%, 88%, 100% { transform: translate(0); opacity: 0; }
  90%            { transform: translate(3px, 2px);  opacity: 0.6; }
  93%            { transform: translate(-3px, -1px); opacity: 0.4; }
  96%            { transform: translate(2px, 0);    opacity: 0.6; }
}

/* ── Neon button ──────────────────────────────────────────── */
.btn-neon {
  display: inline-block;
  padding: 0.75rem 2.2rem;
  border: 2px solid var(--pink);
  border-radius: 2px;
  color: var(--pink);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.875rem;
  text-shadow: var(--glow-pink);
  box-shadow: 0 0 12px #2979ff45, inset 0 0 10px #2979ff16;
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}

.btn-neon:hover {
  background: var(--pink);
  color: var(--dark);
  box-shadow: var(--glow-pink);
  text-shadow: none;
}

/* ── Sections ─────────────────────────────────────────────── */
.section {
  position: relative;
  z-index: 1;
  padding: 6rem 1.5rem;
}

#about.section {
  padding-top: 0;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 3rem;
  text-align: center;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--pink), var(--purple));
  box-shadow: var(--glow-pink);
  margin: 0.6rem auto 0;
  border-radius: 2px;
}

/* ── Card glow base ───────────────────────────────────────── */
.card-glow {
  background: var(--card-bg);
  border: 1px solid rgba(41, 121, 255, 0.2);
  border-radius: 6px;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.card-glow:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 18px #2979ff35, 0 0 48px #2979ff18;
  transform: translateY(-3px);
}

/* ── About ────────────────────────────────────────────────── */
.about-card {
  padding: 2.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text);
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

/* ── Timeline ─────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.6rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--purple), var(--pink));
  opacity: 0.5;
}

.timeline-item {
  position: relative;
  margin-bottom: 2.2rem;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.timeline-dot {
  position: absolute;
  left: -2.5rem;
  top: 1.4rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateX(0.1rem);
}

.timeline-card {
  padding: 1.5rem 1.8rem;
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--pink);
  text-shadow: var(--glow-pink);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.timeline-card h3 {
  font-size: 1.1rem;
  color: var(--cyan);
  margin-bottom: 0.25rem;
}

.timeline-company {
  font-size: 0.85rem;
  color: var(--purple);
  text-shadow: var(--glow-purple);
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.timeline-card p:last-child {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ── Skills ───────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.skill-badge {
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0.85rem 1.1rem;
  border: 1px solid rgba(41, 121, 255, 0.2);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  text-shadow: none;
  box-shadow: none;
  letter-spacing: 0.06em;
  text-align: center;
  transition: border-color 0.25s, color 0.25s, box-shadow 0.25s, transform 0.25s;
  cursor: default;
}

.skill-badge:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 18px #2979ff35, 0 0 48px #2979ff18;
  transform: translateY(-3px);
}

/* ── Languages ────────────────────────────────────────────── */
.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.4rem;
}

.lang-card {
  padding: 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lang-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cyan);
}

.lang-level {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--pink);
  text-shadow: var(--glow-pink);
  letter-spacing: 0.1em;
}

.lang-bar {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.lang-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  box-shadow: 0 0 8px var(--cyan);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

.lang-fill.animated {
  transform: scaleX(1);
}

/* ── Contact ──────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 280px));
  gap: 1.4rem;
  justify-content: center;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text);
  text-decoration: none;
}

.contact-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 0 8px var(--cyan));
}

.contact-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  word-break: break-all;
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  padding: 2.5rem 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid rgba(41, 121, 255, 0.15);
}

/* ── Scroll-reveal base ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 700px) {
  .nav-menu-toggle {
    left: 1rem;
  }

  .lang-switch {
    right: 1rem;
  }

  .lang-switch select {
    font-size: 0.74rem;
    padding: 0.26rem 1.55rem 0.26rem 0.5rem;
  }

  .nav-links {
    width: calc(100vw - 20px);
    max-width: calc(100vw - 20px);
    left: 10px;
    transform: translate3d(0, -8px, 0) scale(0.995);
  }

  .nav-links.open {
    transform: translate3d(0, 0, 0) scale(1);
  }

  .nav-links li {
    padding: 0.7rem 0;
  }

  .timeline {
    padding-left: 1.8rem;
  }

  .timeline-dot {
    left: -1.85rem;
    width: 11px;
    height: 11px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .section { padding: 4rem 1rem; }
  .about-card { padding: 1.5rem; }
}